bionic (1) isnum.1.gz

Name

       isnum - Return code telling whether the input string is numerical

Synopsis

       isnum string

Description

       isnum is a utility for identifying and classifying an input string.  <B>isnum</B> returns an integer code
       depending on how it identifies the input number: 0: string is not any sort of  number  1:  String  is  an
       integer  2:  String  is a floating point number 3: String is a hh:mm:ss.ss time 4: String is a yyyy-mm-dd
       date

Author

       Jessica Mink, SAO (jmink@cfa.harvard.edu)